Camaro V8-350 5.7L (1989)
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Clean the IAC valve gasket sealing surface, pintle valve seat and air passage:
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Use carburetor cleaner to remove carbon deposits. DO NOT use a cleaner that contains Methyl Ethyl Ketone. It is an extremely strong
solvent, and not necessary for this type of deposit.
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Shiny spots on the pintle or seat are normal, and do not indicate misalignment or a bent pintle shaft.
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If the air passage has heavy deposits, remove the throttle body for complete cleaning.
NOTE: If installing a new IAC valve, be sure to replace it with an identical part. The IAC valve pintle shape and diameter are designed for the specific
application.
INSTALLATION:
1.
Install the IAC valve assembly with a new gasket, and tighten to 18 Nm (13 lb.ft), using a socket or box wrench on the valve hex.
2.
Connect the electrical connector.
3.
Reset the IAC valve pintle position:
a.
Depress the accelerator pedal slightly.
b.
START and run the engine for five seconds.
c.
Turn the ignition OFF for ten seconds.
d.
RESTART the engine and check for proper idle operation.
